What is the cheapest airline that flies from San Diego to Barcelona?

British Airways is the most popular carrier operating from San Diego to Barcelona

What airlines fly to Barcelona?

United Airlines, British Airways and Lufthansa are the top three most popular airlines that fly to Barcelona from San Diego according to our data. United Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Barcelona. Keep in mind that there are 8 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from San Diego Airport to Barcelona?

Prices for flights from San Diego Airport to Barcelona are refreshed on a daily basis.

How many operators does momondo search for flights from San Diego Airport to Barcelona?

The number of operators available for flights from San Diego Airport to Barcelona is 8 as of December 2025.

How old do you have to be to fly from San Diego Airport to Barcelona?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to Barcelona.

What documentation or ID do you need to fly to Barcelona?

The required travel and health documents for your Barcelona trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Barcelona. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$262 Cheap Flights from San Diego to Barcelona in 2025/26

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Find the cheapest flights from San Diego to Barcelona

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:21 am - 8:50 am

SAN

BCN

14h 29m1 stop

11:00 am - 10:50 pm

BCN

SAN

20h 50m2 stops

$476Multiple Airlines

Tue, Jan 13 - Tue, Jan 27

4:00 pm - 7:00 pm

SAN

BCN

18h 00m2 stops

7:50 pm - 10:33 pm

BCN

SAN

35h 43m2 stops

$480SWISS

Thu, Jan 15 - Thu, Jan 22

8:25 am - 8:50 am

SAN

BCN

15h 25m1 stop

10:40 am - 8:41 pm

BCN

SAN

19h 01m1 stop

$482British Airways

Sun, Feb 1 - Sun, Feb 8

6:00 pm - 10:30 pm

SAN

BCN

19h 30m1 stop

8:00 pm - 4:10 pm

BCN

SAN

29h 10m1 stop

$483British Airways

Sun, Jan 11 - Sun, Jan 25

6:30 am - 9:00 am

SAN

BCN

17h 30m2 stops

10:30 am - 8:45 pm

BCN

SAN

18h 15m1 stop

$484United Airlines

Tue, Feb 24 - Mon, Mar 9

2:55 pm - 5:05 pm

SAN

BCN

17h 10m2 stops

10:05 am - 10:31 pm

BCN

SAN

21h 26m2 stops

$485Multiple Airlines

Fri, Jan 23 - Fri, Jan 30

2:55 pm - 5:05 pm

SAN

BCN

17h 10m2 stops

10:05 am - 10:31 pm

BCN

SAN

21h 26m2 stops

$486Multiple Airlines

Fri, Jan 23 - Fri, Jan 30

5:35 pm - 5:35 pm

SAN

BCN

15h 00m1 stop

11:00 am - 9:28 pm

BCN

SAN

19h 28m1 stop

$487United Airlines

Wed, Jan 14 - Sun, Jan 18

6:30 am - 8:20 am

SAN

BCN

16h 50m2 stops

10:30 am - 10:35 pm

BCN

SAN

21h 05m2 stops

$488United Airlines

Tue, Feb 24 - Wed, Mar 4

12:40 pm - 9:35 am

SAN

BCN

59h 55m2 stops

1:35 pm - 11:53 am

BCN

SAN

55h 18m2 stops

$489Air Canada

Fri, Jan 9 - Thu, Jan 29

SWISS flights from San Diego to Barcelona

Our best SWISS deals on San Diego to Barcelona flight tickets

SWISS

Jan 15

SAN4:00 pmSan Diego

18h 00m

2 stops

BCN7:00 pmBarcelona-El Prat

Jan 22

BCN7:50 pmBarcelona-El Prat

35h 43m

2 stops

SAN10:33 pmSan Diego

$480

Find similar

SWISS

Feb 25

SAN4:00 pmSan Diego

32h 05m

2 stops

BCN9:05 amBarcelona-El Prat

Mar 6

BCN7:50 pmBarcelona-El Prat

34h 03m

2 stops

SAN8:53 pmSan Diego

$498

Find similar

SWISS

Feb 24

SAN10:59 amSan Diego

37h 06m

2 stops

BCN9:05 amBarcelona-El Prat

Mar 6

BCN6:45 amBarcelona-El Prat

24h 55m

2 stops

SAN10:40 pmSan Diego

$512

Find similar

KLM flights from San Diego to Barcelona

Our best KLM deals on San Diego to Barcelona flight tickets

KLM

Feb 22

SAN10:15 pmSan Diego

24h 45m

1 stop

BCN8:00 amBarcelona-El Prat

Mar 8

BCN10:15 amBarcelona-El Prat

18h 33m

1 stop

SAN7:48 pmSan Diego

$525

Find similar

KLM

Feb 21

SAN6:30 amSan Diego

17h 10m

1 stop

BCN8:40 amBarcelona-El Prat

Mar 8

BCN10:15 amBarcelona-El Prat

21h 56m

1 stop

SAN11:11 pmSan Diego

$534

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Tue 1/13

9:21 am-8:50 am

1 stop14h 29m

Barcelona-El Prat

Tue 1/27

11:00 am-10:50 pm

2 stops20h 50m

$476

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Thu 1/15

4:00 pm-7:00 pm

2 stops18h 00m

Barcelona-El Prat

Thu 1/22

7:50 pm-10:33 pm

2 stops35h 43m

$480

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Sun 2/1

8:25 am-8:50 am

1 stop15h 25m

Barcelona-El Prat

Sun 2/8

10:40 am-8:41 pm

1 stop19h 01m

$482

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Sun 1/11

6:00 pm-10:30 pm

1 stop19h 30m

Barcelona-El Prat

Sun 1/25

8:00 pm-4:10 pm

1 stop29h 10m

$483

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Tue 2/24

6:30 am-9:00 am

2 stops17h 30m

Barcelona-El Prat

Mon 3/9

10:30 am-8:45 pm

1 stop18h 15m

$484

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Fri 1/23

2:55 pm-5:05 pm

2 stops17h 10m

Barcelona-El Prat

Fri 1/30

10:05 am-10:31 pm

2 stops21h 26m

$485

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Fri 1/23

2:55 pm-5:05 pm

2 stops17h 10m

Barcelona-El Prat

Fri 1/30

10:05 am-10:31 pm

2 stops21h 26m

$486

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Wed 1/14

5:35 pm-5:35 pm

1 stop15h 00m

Barcelona-El Prat

Sun 1/18

11:00 am-9:28 pm

1 stop19h 28m

$487

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Tue 2/24

6:30 am-8:20 am

2 stops16h 50m

Barcelona-El Prat

Wed 3/4

10:30 am-10:35 pm

2 stops21h 05m

$488

San DiegoBarcelona

SAN - BCN

SANBCN

San Diego

Fri 1/9

12:40 pm-9:35 am

2 stops59h 55m

Barcelona-El Prat

Thu 1/29

1:35 pm-11:53 am

2 stops55h 18m

$489

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Diego to Barcelona

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Barcelona?

The month of November is, on average, the cheapest month to fly to Barcelona from San Diego, with most prices found around $632. If you don’t want to visit Barcelona in November, then you should wait until January to fly from San Diego, when ticket prices are also cheap, with an average price of $700.

What is the cheapest day to depart on your flight to Barcelona?

The cheapest day to depart from San Diego to Barcelona is on a Wednesday when prices can be found for as low as $782. On the other hand, Thursday is the most expensive day to depart from San Diego because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,006.

What is the cheapest time of day to depart on your flight to Barcelona?

In the afternoon is the cheapest time of day to fly from San Diego to Barcelona when you can find flight prices for as low as $850. Flying to Barcelona in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $939 on average. Flights to Barcelona from San Diego in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Barcelona?

You are more likely to see cheaper flights to Barcelona from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Barcelona for around $836 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Barcelona from San Diego for as low as $743 on momondo.

Cheap San Diego to Barcelona flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Barcelona

Fastest flight time	14h 17m
Direct flights	None

The fastest flight from San Diego to Barcelona takes 14h 17m

There are no direct flights from San Diego to Barcelona. There are no popular flight routes from San Diego to Barcelona.

Search flight deals

How far is San Diego to Barcelona by plane?
The distance between San Diego and Barcelona is about 6024.0 mi. A reasonable flight in good conditions will take 14h 17m.
When did momondo last update prices for flights from San Diego Airport to Barcelona?
Prices for flights from San Diego Airport to Barcelona are refreshed on a daily basis.
How many operators does momondo search for flights from San Diego Airport to Barcelona?
The number of operators available for flights from San Diego Airport to Barcelona is 8 as of December 2025.
How old do you have to be to fly from San Diego Airport to Barcelona?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to Barcelona.
What documentation or ID do you need to fly to Barcelona?
The required travel and health documents for your Barcelona trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Barcelona. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from San Diego to Barcelona

Compare and see reviews for airlines that fly from San Diego to Barcelona with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $483	Free Cancellation	Rating 7.7 1,432 reviews	Search KLM flights
Iberia	PriceFrom $492	Free Cancellation	Rating 7.0 3,045 reviews	Search Iberia flights
Delta	PriceFrom $493	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
Air Canada	PriceFrom $528	Free Cancellation	Rating 7.1 10,517 reviews	Search Air Canada flights
Lufthansa	PriceFrom $556	Free Cancellation	Rating 6.8 7,626 reviews	Search Lufthansa flights
United Airlines	PriceFrom $562	Free Cancellation	Rating 7.4 9,094 reviews	Search United Airlines flights
British Airways	PriceFrom $581	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
American Airlines	PriceFrom $634	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Barcelona?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Diego to Barcelona for you.

Can I find flights from San Diego to Barcelona with flexible booking policies on momondo?

All flight searches from San Diego to Barcelona on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Diego to Barcelona?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Barcelona from San Diego.

I’m not ready to book a flight from San Diego to Barcelona right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Diego to Barcelona flights. All you need is a valid email address and we will do the rest; it is that quick and easy.